Describe viruses
What will be an ideal response?
-acellular
-HAVE to live in a host cell to be activie
-involved in DNA transfer called transduction
-easily spread
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To maintain a given weight, you must balance the amount of energy in the food you eat with the energy you _______________ in your activities
Fill in the blank(s) with correct word
In what way(s) can mRNAs be processed?
A. By adding caps and tails to the ends of the mRNAs B. By splicing the exons (the coding regions) of the mRNAs in different ways C. By removing the introns (the noncoding regions) of the mRNAs D. All of the above are ways in which mRNAs can be processed
In flowering plants, the immature male gametophyte is the:a
anther. b. pollen grain. c. carpel. d. style. e. androecium.
Most bird species that form flocks show a negative relationship between flock size and individual vigilance (i.e., the larger the flock, the less often an individual lifts its head to scan the surrounding environment). However, some bird species have shown a positive relationship between flock size and individual vigilance. The positive relationship is particularly strong when flocks are space-constrained, such as in small ponds or fields. What is the most likely explanation for this?
A. As flock size increases, the risk of predation for any given member increases, so individuals must spend more time scanning for predators. B. As flock size increases, the risk for interference and aggression between members increases, so individuals must scan for both conspecifics and predators. C. As flock size increases, mating opportunities decrease, so individuals must spend more time scanning for potential mates. D. As flock size increases, the number of "cheaters" increases, so individuals must spend more time scanning for predators.